Strong Predictors of Mortality in Acute Pancreatitis

Primary Mortality Predictor: Organ Failure

• Persistent or progressive organ failure, particularly multiorgan failure, is the strongest and most reliable predictor of mortality in acute pancreatitis 1, 2

Clinical Scoring Systems for Risk Stratification

• APACHE II score ≥8 is the preferred multifactorial scoring system for predicting severe disease and mortality, though it is complex 1, 2, 3, 4
• BISAP score ≥2 offers the best balance of accuracy and simplicity for predicting severity, death, and organ failure, and is simpler to use than APACHE II 3, 4, 5

Laboratory Markers

• C-reactive protein >150 mg/L at 48 hours after disease onset is the preferred single laboratory adjunct for predicting mortality 1, 2
• BUN >20 mg/dL or rising BUN characterizes severe acute pancreatitis 5

Imaging Findings

• Pancreatic necrosis assessed by contrast-enhanced CT after 72 hours should be performed in patients with APACHE II >8 or evidence of organ failure, and infected necrosis with organ failure carries a mortality rate of 35.2% 1, 2, 6
• Sterile necrosis with organ failure carries a mortality rate of 19.8% 6